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Open-Pub: A Transparent yet Privacy-Preserving Academic Publication System based on Blockchain
Academic publications of latest research results are crucial to advance ...
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Privacy-Preserving P2P Energy Market on the Blockchain
Quartierstrom creates a peer-to-peer marketplace for locally generated s...
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FileBounty: Fair Data Exchange
Digital contents are typically sold online through centralized and custo...
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Towards Privacy-assured and Lightweight On-chain Auditing of Decentralized Storage
How to audit outsourced data in centralized storage like cloud is well-s...
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SEPAR: A Privacy-Preserving Blockchain-based System for Regulating Multi-Platform Crowdworking Environments
Despite recent intensive research, existing crowdworking systems do not ...
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LASS: a simple assignment model with Laplacian smoothing
We consider the problem of learning soft assignments of N items to K cat...
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Privacy in Blockchain Systems
In this literature review, we first briefly provide an introduction on t...
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PASTRAMI: Privacy-preserving, Auditable, Scalable Trustworthy Auctions for Multiple Items
Decentralised cloud computing platforms enable individuals to offer and rent resources in a peer-to-peer fashion. They must assign resources from multiple sellers to multiple buyers and derive prices that match the interests and capacities of both parties. The assignment process must be decentralised, fair and transparent, but also protect the privacy of buyers. We present PASTRAMI, a decentralised platform enabling trustworthy assignments of items and prices between a large number of sellers and bidders, through the support of multi-item auctions. PASTRAMI uses threshold blind signatures and commitment schemes to provide strong privacy guarantees while making bidders accountable. It leverages the Ethereum blockchain for auditability, combining efficient off-chain computations with novel, on-chain proofs of misbehaviour. Our evaluation of PASTRAMI using Filecoin workloads show its ability to efficiently produce trustworthy assignments between thousands of buyers and sellers.
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